ebrary, Inc, Litteljohn, B. M., & Beck, G. G. (2000). Voices for the watershed: Environmental issues in the Great Lakes-St. Lawrence drainage basin. McGill-Queen's University Press.
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Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Bruce M. Litteljohn, eta Gregor Gilpin Beck. Voices for the Watershed: Environmental Issues in the Great Lakes-St. Lawrence Drainage Basin. Montreal: McGill-Queen's University Press, 2000.
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MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Voices for the Watershed: Environmental Issues in the Great Lakes-St. Lawrence Drainage Basin. McGill-Queen's University Press, 2000.
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